Firefly Aerospace Inc.

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-04 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Firefly Aerospace Inc. (FLY) CIK: 0001860160 --- Reporting Owner --- Name: O'Konek Nathan CIK: 0001878963 Role: Officer (General Counsel & Secretary) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-04 | Code: A (Grant or award) Shares: +103,154 | Price: $0.00 Shares Owned After: 103,154 | Ownership: D (Direct) Footnotes: [F1] Represents restricted stock units ("RSUs") granted under the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan. 1/3rd of the RSUs shall vest on August 20, 2027 and 1/12th of the RSUs shall vest quarterly thereafter, subject to the reporting person's continued employment with the Issuer through the respective vesting date. [F2] The securities consist of RSUs. Each RSU represents a contingent right to receive one share of the Issuer's common stock. --- Footnotes (Complete Index) --- F1: Represents restricted stock units ("RSUs") granted under the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan. 1/3rd of the RSUs shall vest on August 20, 2027 and 1/12th of the RSUs shall vest quarterly thereafter, subject to the reporting person's continued employment with the Issuer through the respective vesting date. F2: The securities consist of RSUs. Each RSU represents a contingent right to receive one share of the Issuer's common stock. --- Signature --- /s/ /s/ Nathan O'Konek (2026-08-06)